Question

what is statistical error

Answer 1

Here is your answer...
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Statistical error=> The difference between the retained value & the true value.

Statistical errors are one special kind of error in a class of errors which are known as random errors. 

Answer 2

Heya....

Statistical errors are that errors that occurs during the collection or estimation of statistical data....

These errors can be....

Measurement errors...
Calculation errors....
Misinterpretation errors....